MORAGA, Calif. (AP) _ Sophomore quarterback J.T. O'Sullivan threw for 253 yards and a pair of touchdowns to lift UC Davis to a 28-14 victory over St. Mary's, Calif. Saturday.

O'Sullivan completed 18 of 26 passes for the Aggies.

Miguel Valdillez put the Gaels ahead when he intercepted a pass from O'Sullivan and returned the ball 25 yards for a touchdown in the opening minute of the game. Late in the first quarter, Aggie Matt Brown scored on a 4-yard run to tie the game.

O'Sullivan's touchdown pass to John Shoemaker gave UC Davis a 14-7 lead at the break.

In the third quarter, O'Sullivan found Charley Enos open for a 75-yard score, giving the Aggies a two-touchdown edge. Gus Papanikolas hit Marc Kleiman with a 22-yard touchdown pass, bringing the Gaels within 21-14.

An Aggie 80-yard drive set up a 2-yard touchdown run to put the Aggies ahead in the fourth.